This review shows that there's some that perform a bit better than others. But unless you're superoverclocking, the top 1/2 of the list all perform well enough for the casual OCer. The AS5 did finish with better numbers than the included TX-2, but not by enough in my book to warrant a $9 tube of goo. See round 2 testing and the minimal difference.http://benchmarkreviews.com/index.php?option=com_content&task=view&id=138&Itemid=1
yeah the difference in paste quality was soo small that it would be a huge waste of money.
thanks for your answer, i think this cpu cooler will work perfectly for my build